This is used to remove tracks from the filtering index. We'll need this
once we switch over to storing pointers to keep the same track from
getting added multiple times.
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
This is more straightforward than using my custom index code without
adding too much work.
Implements #43: Filter code can use a GHashTable directly
Signed-off-by: Anna Schumaker <Anna@OcarinaProject.net>
Anna Schumaker